iokit/Drivers/platform/drvApplePlatformExpert/AppleCPU.cpp

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
  24  *
  25  *  DRI: Josh de Cesare
  26  *
  27  */
  28
  29 #include "AppleCPU.h"
  30
  31 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  32
  33 #undef super
  34 #define super IOCPU
  35
  36 OSDefineMetaClassAndStructors(AppleCPU, IOCPU);
  37
  38 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
  39
  40 bool AppleCPU::start(IOService *provider)
  41 {
  42   kern_return_t       result;
  43   ml_processor_info_t processor_info;
  44
  45   if (!super::start(provider)) return false;
  46
  47   cpuIC = new IOCPUInterruptController;
  48   if (cpuIC == 0) return false;
  49
  50   if (cpuIC->initCPUInterruptController(1) != kIOReturnSuccess) return false;
  51   cpuIC->attach(this);
  52
  53   cpuIC->registerCPUInterruptController();
  54
  55   processor_info.cpu_id           = (cpu_id_t)this;
  56   processor_info.boot_cpu         = true;
  57   processor_info.start_paddr      = 0;
  58   processor_info.supports_nap     = false;
  59   processor_info.l2cr_value       = 0;
  60   processor_info.time_base_enable = 0;
  61
  62   // Register this CPU with mach.
  63   result = ml_processor_register(&processor_info, &machProcessor,
  64                                  &ipi_handler);
  65   if (result == KERN_FAILURE) return false;
  66
  67   setCPUState(kIOCPUStateUninitalized);
  68
  69   processor_start(machProcessor);
  70
  71   registerService();
  72
  73   return true;
  74 }
  75
  76 void AppleCPU::initCPU(bool boot)
  77 {
  78   if (boot) {
  79     cpuIC->enableCPUInterrupt(this);
  80   }
  81
  82   setCPUState(kIOCPUStateRunning);
  83 }
  84
  85 void AppleCPU::quiesceCPU(void)
  86 {
  87   // Unsupported.
  88 }
  89
  90 kern_return_t AppleCPU::startCPU(vm_offset_t /*start_paddr*/,
  91                                  vm_offset_t /*arg_paddr*/)
  92 {
  93   return KERN_FAILURE;
  94 }
  95
  96 void AppleCPU::haltCPU(void)
  97 {
  98   // Unsupported.
  99 }
 100
 101 const OSSymbol *AppleCPU::getCPUName(void)
 102 {
 103   return OSSymbol::withCStringNoCopy("Primary0");
 104 }
 105
 106 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */